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bluetooth: Use round() to convert PA<->BT volumes

Browse source 
The code can be simplified since it's just trying to round the result of
the division. Note that the resulting behavior is slightly different,
specially when the volume is 0. In this case, it will remain at 0,
instead of being set to 1.
This commit is contained in:
Mikel Astiz 2012-12-06 10:35:17 +01:00 • committed by Tanu Kaskinen
parent b36686ea9a
commit ccc9a58dd0
1 changed files with 7 additions and 30 deletions
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37
src/modules/bluetooth/module-bluetooth-device.c
View file

@ -26,6 +26,7 @@
#include <string.h>
#include <errno.h>
#include <math.h>
#include <linux/sockios.h>
#include <arpa/inet.h>
@ -1330,21 +1331,13 @@ static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *us
if (u->profile == PROFILE_HSP) {
if (u->sink && dbus_message_is_signal(m, "org.bluez.Headset", "SpeakerGainChanged")) {
pa_volume_t volume = (pa_volume_t) (gain * PA_VOLUME_NORM / HSP_MAX_GAIN);
/* increment volume by one to correct rounding errors */
if (volume < PA_VOLUME_NORM)
volume++;
pa_volume_t volume = (pa_volume_t) round((double) gain * PA_VOLUME_NORM / HSP_MAX_GAIN);
pa_cvolume_set(&v, u->sample_spec.channels, volume);
pa_sink_volume_changed(u->sink, &v);
} else if (u->source && dbus_message_is_signal(m, "org.bluez.Headset", "MicrophoneGainChanged")) {
pa_volume_t volume = (pa_volume_t) (gain * PA_VOLUME_NORM / HSP_MAX_GAIN);
/* increment volume by one to correct rounding errors */
if (volume < PA_VOLUME_NORM)
volume++;
pa_volume_t volume = (pa_volume_t) round((double) gain * PA_VOLUME_NORM / HSP_MAX_GAIN);
pa_cvolume_set(&v, u->sample_spec.channels, volume);
pa_source_volume_changed(u->source, &v);
@ -1476,16 +1469,8 @@ static void sink_set_volume_cb(pa_sink *s) {
pa_assert(u->sink == s);
pa_assert(u->profile == PROFILE_HSP);
gain = (pa_cvolume_max(&s->real_volume) * HSP_MAX_GAIN) / PA_VOLUME_NORM;
if (gain > HSP_MAX_GAIN)
gain = HSP_MAX_GAIN;
volume = (pa_volume_t) (gain * PA_VOLUME_NORM / HSP_MAX_GAIN);
/* increment volume by one to correct rounding errors */
if (volume < PA_VOLUME_NORM)
volume++;
gain = (dbus_uint16_t) round((double) pa_cvolume_max(&s->real_volume) * HSP_MAX_GAIN / PA_VOLUME_NORM);
volume = (pa_volume_t) round((double) gain * PA_VOLUME_NORM / HSP_MAX_GAIN);
pa_cvolume_set(&s->real_volume, u->sample_spec.channels, volume);
@ -1514,16 +1499,8 @@ static void source_set_volume_cb(pa_source *s) {
pa_assert(u->source == s);
pa_assert(u->profile == PROFILE_HSP);
gain = (pa_cvolume_max(&s->real_volume) * HSP_MAX_GAIN) / PA_VOLUME_NORM;
if (gain > HSP_MAX_GAIN)
gain = HSP_MAX_GAIN;
volume = (pa_volume_t) (gain * PA_VOLUME_NORM / HSP_MAX_GAIN);
/* increment volume by one to correct rounding errors */
if (volume < PA_VOLUME_NORM)
volume++;
gain = (dbus_uint16_t) round((double) pa_cvolume_max(&s->real_volume) * HSP_MAX_GAIN / PA_VOLUME_NORM);
volume = (pa_volume_t) round((double) gain * PA_VOLUME_NORM / HSP_MAX_GAIN);
pa_cvolume_set(&s->real_volume, u->sample_spec.channels, volume);